Fig. 3From: Accumulation in nutrient acquisition strategies of arbuscular mycorrhizal fungi and plant roots in poor and heterogeneous soils of karst shrub ecosystemsRelationship between the arbuscular mycorrhizal fungal colonisation and relative growth rate (a); relative growth rate and root phosphatase activity phosphatases (b); N2 fixation and relative growth rate (c); root biomass and relative growth rate (d) of two N2-fixing plant species (Albizia odoratissima and Cajanus cajan) grown in different soil conditions (ho, homogeneous; he, heterogenous; AMF, inoculated; non-AMF, not inoculated)Back to article page